it took linda a total of 6 hours to paddle from one end of a lake to the other and back again along the same path. If she average 3 miles per hour for the first leg and 2 miles per hour coming back how many miles was it from one end of the lake to the other

How should the syntax in this sentence be changed, if at all? the scientists spent years analyzing the results of numerous medical studies meant to identify the cause of the disease. no change the scientists spent years looking at the results of a variety of different medical studies meant to locate the cause of the disease. the scientists spent years reviewing medical study results to find the cause of the disease. the scientists spent years studying the results of many medical studies in order to uncover the cause of the disease.